States of Matter
Calculate the volume occupied by 5.0g of acetylene gas at 50∘C and 740mm pressure.
The van der Waals' constant 'b' of a gas is 4π×10−4L/mol. How near can the centeres of the two molecules approach each other? [Use :NA=6×1023]
A balloon of diameter 21 meter weight 100 kg. Calculate its pay-load, if it is filled with He at 1.0 atm and 27∘C. Density of air is 1.2 kg m−3 . (Given : R=0.082 L atm K−1mol−1)
A certain hydrate has the formula MgSO4.xH2O. A quantity of 54.2 g of the compound is heated in an oven to drive off the water. If the steam generated exerts a pressure of 24.8 atm in a 2.0 L container at 120∘C, calculate x.
Which of the following can be must readily liquefied? The given value of a for NH3 is 4.17, CO2 is 3.59, SO2 is 6.71, and Cl2 is 6.49.
Consider Three one -litre flasks labeled A,B and C filled with the gases NO,NO2, and N2O, respectively, each at 1 atm and 273 K. In which flask do the molecules have the highest average kinetic energy?
Calculate the volue of O2 at 1 atm and 273 K required for the complete combustion of 2.64 L of acetylene (C2H2) at 1 atm and 273 K. 2C2H2(g)+5O2(g)→4CO2(g)+2H2O(l)